<template>
  <el-form :inline="true" size="large">
      <el-form-item label="评分">
        <el-select v-model="formData.score" clearable @clear="refreshPage" placeholder="请选择评分" style="width: 250px;">
          <el-option v-for="num in [1,2,3,4,5]" :key="num" :label="num" :value="num" style="text-align: center;"/>
      </el-select>
      </el-form-item>
      <el-form-item label="用户名">
        <el-select v-model="formData.userId" clearable @clear="refreshPage" placeholder="请选择用户名" style="width: 240px">
            <el-option v-for="item in classList" :key="item.id" :label="item.username" :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="课程名">
        <el-select v-model="formData.courseId" clearable @clear="refreshPage" placeholder="请选择用户名" style="width: 240px">
            <el-option v-for="item in courseList" :key="item.id" :label="item.courseName" :value="item.id" />
        </el-select>
      </el-form-item>
      <el-form-item label="添加时间">
            <el-date-picker v-model="daterange" value-format="YYYY-MM-DD" type="daterange" range-separator="至" start-placeholder="开始时间" end-placeholder="结束时间" :size="size"  @clear="refreshPage" />
        </el-form-item>
      <el-form-item>
          <el-button type="primary" @click="getAllComm">搜索</el-button>
          <el-button type="danger" @click="removeBatch">批量删除</el-button>
      </el-form-item>
  </el-form>
  <el-form>
      <el-table :data="visitList" border class="my-table" size="large" @selection-change="handleSelectionChange">
          <el-table-column type="selection" :selectable="selectable" width="55" />
          <el-table-column prop="id" label="ID" align="center"></el-table-column>
          <el-table-column prop="commentContent" label="评价内容" align="center" width="600"></el-table-column>
          <el-table-column prop="score" label="评分" align="center" width="150">
              <template v-slot="scope">
                  <div class="star-rating-table">
                      <template v-for="num in 5" :key="num">
                          <Star v-if="scope.row.score >= num" class="filled-star" />
                          <Star v-else class="empty-star" />
                      </template>
                  </div>
              </template>
          </el-table-column>
          <el-table-column prop="commentTime" label="评价时间" align="center"></el-table-column>
          <el-table-column prop="course.courseName" label="课程名称" align="center"></el-table-column>
          <el-table-column prop="sysUser.username" label="用户名称" align="center"></el-table-column>
          <el-table-column label="操作" align="center">
              <template v-slot="scope">
                  <el-link type="danger" @click="handleDownshelf(scope.row)">删除</el-link>
              </template>
          </el-table-column>
      </el-table>
  </el-form>
<el-row>
    <el-pagination
      :page-sizes="[6, 10, 30, 40]"
      :size="size"
      :disabled="disabled"
      :background="background"
      :default-page-size="6"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total"
      @size-change="handleSizeChange"
      @current-change="pageNumChange"
    />
  </el-row>
</template>

<script setup>
//icon图标
import { Search,Refresh,Edit,CloseBold,Plus,Share,ArrowRight,Star } from '@element-plus/icons-vue'
//信息提示
import { ElForm, ElMessage, ElMessageBox, uploadProps } from 'element-plus';
//getCurrentInstance获取全局对象，用于获取axios属性
//onMounted页面加载后开始挂载执行
//watchEffect属性监听器，daterange响应后开始执行函数，这里用于获取开始时间和结束时间
import { getCurrentInstance, onMounted, ref, watchEffect,onBeforeUnmount } from 'vue';
//接收全局对象
const CurrentInstance=getCurrentInstance()
//初始化添加弹框，使其不显示
const dialogFormVisible = ref(false)
//添加弹出框左边距
const formLabelWidth = '140px'
//获取全局对象挂载的naxios赋值给$http来代替naxios
const {$http}=CurrentInstance.appContext.config.globalProperties
//弹出框的标题
const title=ref("")
//代表active样式
const i=ref("")
//默认动态页码为0
const total=ref(0)
//额外定义aterange来包含formDate中的开始时间和结束时间
const daterange=ref('')
//用户数据
const classList = ref([]);
//课程数据
const courseList=ref([]);
//视频地址中转
const imageUrl = ref('')
const imgUrl=ref('')
const tip=ref("请上传并提交一个文件")
 // 初始化为false，表示文件还未上传成功
const fileUploaded = ref(false);
//动态方法，默认弹出框为add
const operationType = ref('add');
//定义formData来接收访问地址的数据
const formData =ref({
  score:"",
  userId:"",
  courseId:"",
  pageNum:1 ,// 页码
  pageSize:6, // 每页展示条数
  startTime:'',
  endTime:'',
  ids:[]//多选id
})
//定义的表格数据来存放访问地址中的数据
let visitList=ref([
  
])
let visitData=ref({
  id:"",
  commentContent:"",
  score:"",
  commentTime:"",
  userId:"",
  courseId:"",
  del:""
})
//监听函数，if else是为了防止访问空时报错，同时获取页面的开始时间和结束时间
watchEffect(function(){
  if(daterange.value){    
        formData.value.startTime=daterange.value[0]
        formData.value.endTime=daterange.value[1]
    }else{
        formData.value.startTime = '';
        formData.value.endTime = '';
    }
})
//点击搜索的清除组件，刷新页面
function refreshPage() {
    formData.value.startTime = '';
    formData.value.endTime = '';
    getAllComm();
}
//生命周期中挂载到页面加载之后开始执行
onMounted(()=>{
  getAllComm()
  getListComm()
  getListComm1()
})
//获取点击的分页页码并执行搜索功能
function pageNumChange(num){
    formData.value.pageNum=num;
    getAllComm()
}
function handleSizeChange(size){
    formData.value.pageSize=size;
    getAllComm()
}
//搜索功能，将formData的定义初始属性传给访问地址，并传回来地址中的表格数据和各个属性
function getAllComm(){
  $http({
      method:"get",
      url:"http://localhost:8081/sfzy/courseComment/page",
      params:formData.value
  }).then(res=>{ 
      visitList.value=res.data.data.list;//获取访问地址中的列表数据传给visitList
      total.value=res.data.data.total;
  })
}
function getListComm() {
    $http({
        method: "get",
        url: "http://localhost:8081/sfzy/sysUser"
    }).then(res => {
        classList.value = res.data.data;
    })
}
function getListComm1() {
    $http({
        method: "get",
        url: "http://localhost:8081/sfzy/course"
    }).then(res => {
      courseList.value = res.data.data;
    })
}
//删除功能
function handleDownshelf(val){
  if (formData.value.ids.length > 0) {
        ElMessage({
            type: 'warning',
            message: '已选择了多行，请使用批量删除功能进行操作！',
        });
        return;
    }
    ElMessageBox.confirm(
    '是否确认删除小区数据?',
    '删除',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(() => {
      const { id } = val;
      $http({
          method:"delete",
          url:`http://localhost:8081/sfzy/courseComment/${id}`,
          data:{}
      }).then(res=>{
          if (res.data.code === 200) {  
              ElMessage.success("删除成功！");  
          } else {  
              ElMessage.error("删除失败");  
          }  
          getAllComm(); 
      })
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '取消删除操作',
      })
    })
}
//批量删除
const selectable = (row) => ![].includes(row.id)
const handleSelectionChange = (val) => {
  formData.value.ids = val.map(item => item.id);
}
function removeBatch(){
    ElMessageBox.confirm(
    '是否确认删除小区数据?',
    '删除',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(() => {
      const idsArray  = formData.value.ids;
      // 将数组idsArray中的元素拼接成字符串形式，用逗号分隔
      const idsStr = idsArray.join(',');
      
      $http({
          method:"delete",
          url:`http://localhost:8081/sfzy/courseComment?ids=${idsStr}`,
          data:{}
      }).then(res=>{
          if (res.data.code === 200) {  
              ElMessage.success("删除成功！");  
              // 判断当前页是否还有数据，如果没有则将页码减1
                if (visitList.value.length === 0 && formData.value.pageNum > 1) {
                    formData.value.pageNum--;
                }
                // 清理ids参数
                formData.value.ids = [];
          } else {  
              ElMessage.error("删除失败");  
          }  
          getAllComm(); 
      })
    })
    .catch(() => {
      ElMessage({
        type: 'info',
        message: '取消删除操作',
      })
    })
}
//重置添加输入框内容
function cancel(){
  dialogFormVisible.value = false;
  tip.value="请上传并提交一个文件";
  visitData.value = {
    id:"",
    comment_content:"",
    score:"",
    comment_time:"",
    user_id:"",
    course_id:"",
    del:""
  }
  getAllComm()
}

</script>
  
<style scoped>
  .demo-form-inline .el-input {--el-input-width: 220px;}
  .demo-form-inline .el-select {--el-select-width: 220px;}
  .el-link {padding: 0 5px;}
  .el-form{width: 1420px;}
  .el-input{width: 300px;}
  .form1{width: 100%;}
  .el-pagination{margin-top: 25px;}
  .coordinates{margin-left: 10px;}
  .my-table :deep(th){background-color: #1890ff;color: #ffffff;text-align: center;}
  .mendian{margin-bottom: 15px;}
  .active{color: green;}
  .avatar{
      width: 250px;
      height: 220px;
      display: block;
  }
  .avatar-uploader .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
  }

  .avatar-uploader .el-upload:hover {
      border-color: var(--el-color-primary);
  }

  .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 250px;
      height: 178px;
      text-align: center;
  }
  .c1{color: #1890ff;cursor: pointer;}
  .c2{color: red;cursor: pointer;}
  .table-img {
    width: 100px; /* 根据需要调整图片宽度 */
    height: 100px; /* 根据需要调整图片高度 */
    object-fit: cover; /* 控制图片如何填充容器，cover会保持图片比例并填满容器 */
}
/* 星星样式 */
.star-rating {
    display: flex;
    align-items: center;
}
.filled-star {
    color: gold; /* 设置填充星星的颜色为金色，类似金星颜色，可以根据喜好调整 */
    font-size: 20px; /* 根据需要调整星星图标大小 */
    margin-right: 5px; /* 调整星星之间的间距 */
}
.empty-star {
    color: lightgray; /* 设置未填充星星的颜色 */
    font-size: 20px;
    margin-right: 5px;
}
.star-rating-table {
    display: flex;
    align-items: center;
}
.star-rating-table.filled-star {
    color: gold;
    font-size: 16px; /* 可根据表格内整体效果适当调整图标大小，此处示例设为16px */
    margin-right: 3px; /* 调整星星之间间距 */
}
.star-rating-table.empty-star {
    color: lightgray;
    font-size: 16px;
    margin-right: 3px;
}
</style>